Hot-water heater.



J. E. POTTS.

HOT WATER HEATER'; APPLIOATIOH I'ILED JULY 29, 1907.

Patented Oct. 20, 1908.

- ZWL %amar JAMES E. POTTS. OF GLEVELAND, OHIO.

HOT-WATER HEATER.

No. 901,&28.

Specification of Letters Patent.

Patented Oct. 20, 1908.

Application filed. July 29, 1907. Serial Ne. 385,996.

To all whom it may concem:

Be it known that I, JAMES E. Po'rrs, a citizen of the United States, and resident of Cleveland, county of Cuyahoga, State of Ohio have invented certain new and useful Improvements in Hot l/Vater Heaters, of which I hereby declare the following to be a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

The objects of the invention are to provide a hot water heater, capable of great efiiciency in use and in which all the parts are simple in Construction, and are not at all liable to get out of order and in which all the circulating passages are readily accessible for cleansing then from mineral de-` posits thei-ein or soot upon their exterior surfaces.

In this heater water tubes are utilized as grate bars, and a double circulating system conveys the water through these tubes to a manifold chanber in the front wall of the boiler setting. Inlet pipes also convey the water to a manifoldchanber in the rear wall of the boiler setting from whence it is led through longtudinally arranged tubes about which the hot air and products of combusti on from the burning grate circulate. These tubes com''unicate also with the front manifold chamber and the water heated by the tubes in the grate and. longitudinal tubes passes into the heating circulation of the building. l

The invention further consists in the combination and arrangement of the circulating passages and Construction of the various details as hereinafter described, shown in the accompanying drawings and specifically pointed out in the claims.

In the accompanying drawings, Figure 1 is a longitudinal vertical section through the improved water heater; Fig. 2 is a front elevation thereof and Fig. 3 is a plan View of the grate. F ig. 4 is a detail horizontal section of one of the walls of the grate show: ing the staggered arrangement of the grate tube flanges to permit of giving them greater width and also of making them more accessible.

In these views l is the setting, 2 the bridge wall, 3, 3 are duplicate slightly i inclined pipes through which the cold water is supplied to the heater, and which pass through the side walls of the fire box 5. The grate surface is obtained by means of the trans- `tubes at a suitable level.

versely arranged horizontal ciroulating tubes 45, which connect with and form a communication between the pipes 3, 3, and. these grate tubes extend between the bridge wall 2 and the front wall of the fire box 5. The pipes 3, 3 are then upwardly extended at 6 and enter the front inanifold 7 at its lower end at S.

The grate bars are horizontal but rise gradually one above the other in a stepped form, the front bar being the highest. The eifect of which novel construction is to subject the water more evenly to the heat and to cause a more regular circulation from the increasng height of the bars.

Vertical branches 9 from these pipes enter the lower sides of the rear manifold chamber 10 and longitudinal tubes ll connect the front and rear nanifolds and form circulatingpassages providing communication between these manifolds.

'To obtain as much heating efect as possible upon these longitudinal tubes from the products of combustion coming from the grate and passing out of the chmney stack 12, a fire brick partition 13 is laid upon the This partition does not cover the entire surface of the tubes but an opening 14 is left at the rear so that the prod'cts of combustion will first traverse the entire length of the tubes below the partiton and then the entire length of the tubes above the partition until they arrive at the stack, thus insuring the action of the heated gases upon all parts of the tubes.

The tubes ll are inserted in the innerwalls of the nanifolds, and the outer walls 15 and 15' of the nanifolds are Secured thereto by means of hinges 16 and 16 so that the outer walls can be swung back to enable the operator' to have access to the tubes for cleaning away any secliment or mineral deposit left therein by the circulating water.

The front manfold is provided in addition to the inlet openings on its lower sides with the outlet opening 17 in the hinged front wall which leads to the house system S such as indicated in dotted line. A Y is provided to connect the circulating pipe S' laterally extending flanged nozzles N alternately long and short and the grate tubes are provided with fianges adapted to engage the flanges of the nozzles. This constru ction is plainly shown in Figs. 3 and el, the effect being to stagger or alternate the flanges in parallel planes so that a much greater width can be given to the fianges and much larger gaskets can be placed thereon, so as to prevent the joints from leaking, than if the joints came opposite to each other.

In the figures are shown also, u'pperand lower perforated plates P supported upon the longitudinal circulating* tubes, one above and one below the level of the fire brick partition. These plates can be moved longitudinally along the tubes and will remove any insulating' deposit therefrom such as cind'ers orsoot. Long rods R' attached to the plates and passing through openings O- in the rear wall of' the casing serve as operating means therefor.

The swinging outer walls of the manifolds af'ford opportunity for readily cleansing the inner parts of the longitudinal tubes, and the grate tubesbeing so. attached as to be easily removed they can also be readily cleansed from any deposit therei'n.

The advantages of the double circulatin-g system of tubes in the fire box casing pro vides for unusual eiiiciency in action and use. The water is quickly heated and the rise of the hot water from the lower grate systen assists in obtaining a quick flow through the longitudinal tubes above.

The fire brick partition can be placed at any level determined to be the most efiic-ient, or as many partitions can be used as desirecb alternating the terminal openings.

Having described the invention what I claim as new and desire to secure by Letters Patent is 1. In a heating device, having a furnace setting, a fire box and bridge wall, the combinationtherewith, of duplicate inclined longitudinal water inlet pipes arranged one on each side thereof in said setting, a conmon inlet opening therefor, a horizontal series of transversely arranged grate tubes, connecting said longitudinal pipes in front of the bridge wall, alternating' short and long fiangednozzles upon said longitudinal pipes, fianges upon the ends of said tubes for attachment to said nozzles, said fianges being arranged in staggered order to enable said grate bars to be placed closely together, a front common` chamberwith which said longitudinal pipes communicate, said chamber being situv ated inthe front Wall of the casing and provided with a hinged front wall and having an ontlet at the upper end, and a rear' chamber with which said circulating pipes communicate and pipes connectmg said front and rear chambers.

2. In a heating` device, provided With a furnacecasing, and a fire box and bridge I wall therein, the conbination therewth, of a manifold chamber in the front wall, and a similar manifold chanber in the rea-r wall, said chambers having swingmg ou ter walls, horizontal tubes connecting said manifolds, a: horizontal partition monnted on said tubes intermediate between the upper and lower tubes, a lower system of transversewater tubes forming a grate in the fire box and spaced closely together, longitudinal pipes in the sides of the casingwith which said tubes communicate, fi anged joints connecting said grate tubes and said circu-lati-ng pipes, the flanges thereon being staggered in position, connectingpipes between said longitud inal pipes and said rear manifold, connecting pipes between said longitudinal pipes and said front manifold, and a circulating pipe communicating with the front swinging wal of said front manifold and with both said longitndinal pipes a-t the sides of said casing, substantially as described.

3. In a heating device, having a: furnace setting a fire box and bridge wall, thecombination therewith, of duplicate long itudinal water inlet pipes a rranged one on each side thereof and inclined upwardly from the rear, a common water inlet therefor located in the rear thereof, a series of horizontal, transverse gra-te tubes, comnunicating with said longitudinal pipes, and arranged' in steps, the highest grate tube at the front end of' said fire box, a common front chambercommunicating'with said longitudinal pipes, an outlet' at the upper end thereof, and a rear ch anber communicatin-g with the rear ends of said longitudinal tubes, and connecting pipes between said chanbers above said fire box.

In testimony whereof I hereu-nto set my hand this 13th day of Jul-y l907.

JAMES E'. POTTS.

In presence of'- GEO. TV. OTT, GEO. E. ANDRES. 

